/* ==========================================================================
   Portfolio Design System — Extracted from Webflow
   Fonts: Poppins (headings + body), Montserrat, Work Sans
   ========================================================================== */

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Poppins', sans-serif;
  color: hsla(0, 0%, 18.82%, 1);
  line-height: 1.5;
  background-color: #fff;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul, ol {
  list-style: disc;
}

/* --- Navigation --- */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: #fff;
}

.nav-logo {
  font-family: 'Poppins', sans-serif;
  font-size: 1.125rem;
  font-weight: 600;
  color: #303030;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: #303030;
  transition: opacity 0.2s ease;
}

.nav-links a:hover {
  opacity: 0.6;
}

.nav-links a.active {
  font-weight: 600;
}

/* --- Layout --- */
.section {
  display: block;
  width: 100%;
  margin-top: 7rem;
  margin-right: auto;
  margin-bottom: 0;
  margin-left: auto;
  padding-right: 0.625rem;
  padding-left: 0.625rem;
  transition: opacity 300ms ease;
}

.section-hero {
  display: flex;
  width: 100%;
  margin-top: 0;
  margin-right: auto;
  margin-left: auto;
  padding-top: 3rem;
  padding-bottom: 2rem;
  flex-direction: column;
  align-items: center;
}

/* Project-specific hero backgrounds */
.section-hero.oasis {
  background-color: hsla(220, 100%, 96%, 1);
}

.section-hero.salesforce {
  background-color: hsla(210, 100%, 96.08%, 1);
}

.container {
  display: flex;
  overflow: visible;
  width: 100%;
  max-width: 940px;
  margin-top: 0;
  margin-right: auto;
  margin-bottom: 0;
  margin-left: auto;
  flex-direction: column;
  justify-content: flex-start;
  flex-wrap: nowrap;
  align-items: center;
}

.content {
  position: relative;
  display: block;
  width: 100%;
  margin-bottom: 2rem;
  text-align: center;
}

/* --- Columns (Hero Layout) --- */
.columns {
  display: block;
  width: 100%;
  padding-left: 0;
}

.column {
  display: block;
  padding-right: 0.625rem;
  padding-left: 0.625rem;
}

.column-title {
  display: block;
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-right: 2rem;
  padding-left: 6rem;
}

.column.title {
  padding-right: 0;
  padding-left: 2rem;
}

/* --- Typography --- */
.heading-title {
  margin-top: 2rem;
  margin-bottom: 3rem;
  font-family: 'Poppins', sans-serif;
  font-size: 2.5rem;
  line-height: 3.625rem;
  font-weight: 700;
  text-align: left;
}

.heading-1-n {
  margin-top: 0;
  margin-bottom: 1rem;
  font-family: 'Poppins', sans-serif;
  color: #303030;
  font-size: 2rem;
  line-height: 3rem;
  font-weight: 600;
  text-align: left;
}

.heading-2-n {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-family: 'Poppins', sans-serif;
  color: #303030;
  font-size: 1.5rem;
  line-height: 2.25rem;
  font-weight: 600;
  text-align: left;
}

.heading-3-n {
  display: block;
  overflow: visible;
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-family: 'Poppins', sans-serif;
  color: #303030;
  font-size: 1.25rem;
  line-height: 2rem;
  font-weight: 600;
  text-align: left;
}

.heading-4-n {
  display: block;
  overflow: visible;
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-family: 'Poppins', sans-serif;
  color: hsla(0, 0%, 18.82%, 0.40);
  font-size: 1.125rem;
  line-height: 1.75rem;
  font-weight: 500;
  text-align: left;
}

.heading-5-n {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-family: 'Poppins', sans-serif;
  color: hsla(0, 0%, 18.82%, 0.40);
  font-size: 1rem;
  line-height: 1.625rem;
  font-weight: 500;
  text-align: left;
  text-decoration: none;
}

/* Heading 6 N — tag/pill style */
.heading-6-n {
  display: inline-block;
  margin-top: 0;
  margin-right: 0.5rem;
  margin-bottom: 0.75rem;
  padding: 0.25rem 0.875rem;
  border: 2px solid;
  border-radius: 2rem;
  background-color: transparent;
  font-family: 'Poppins', sans-serif;
  font-size: 0.75rem;
  line-height: 1.25rem;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
}

.heading-subtitle {
  min-width: 7.5rem;
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-family: 'Poppins', sans-serif;
  font-size: 1.125rem;
  line-height: 1.75rem;
  font-weight: 600;
}

.paragraph {
  display: block;
  overflow: visible;
  width: 100%;
  margin-bottom: 0.625rem;
  font-family: 'Poppins', sans-serif;
  color: hsla(0, 0%, 18.82%, 1);
  font-size: 1.125rem;
  line-height: 1.875rem;
  font-weight: 400;
  text-align: left;
}

/* --- Project Color Themes --- */

/* OASIS (NYC DOE Blue) */
.heading-title.oasis { color: #3170e7; }
.heading-4-n.oasis { color: #3170e7; }
.heading-6-n.oasis { border-color: #3170e7; color: #3170e7; }

/* Salesforce */
.heading-title.salesforce { color: #0271bb; }
.heading-6-n.salesforce { border-color: #0271bb; color: #0271bb; }

/* Beamable */
.heading-6-n.beamable { border-color: #6351ab; color: #6351ab; }

/* --- Hero Sub-elements --- */
.div-subtitle {
  margin-bottom: 1rem;
}

.div-info {
  display: flex;
}

.div-thumbnail {
  position: static;
  height: 35rem;
  background-image: url("../images/63fd0b2f9748f53c4704dabe_thumbnail_salesforce_N.png");
  background-position: 0% 0%;
  background-size: cover;
}

/* --- Spacers --- */
.spacer-3 {
  width: 100%;
  height: 3rem;
}

.spacer-6 {
  width: 100%;
  height: 6rem;
}

/* --- Lists --- */
.list {
  margin-top: 0.625rem;
  margin-bottom: -0.625rem;
  padding-left: 2rem;
}

.list-item {
  margin-bottom: 0.5rem;
  font-family: 'Poppins', sans-serif;
  font-size: 1.125rem;
  line-height: 1.875rem;
  font-weight: 400;
  text-align: left;
}

/* --- Images --- */
.image {
  width: 100%;
  margin-top: 0;
  margin-bottom: 0;
  padding-right: 0.625rem;
  padding-left: 0.625rem;
}

/* --- Image Placeholder --- */
.image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 20rem;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
  padding: 2rem;
  background-color: #f5f5f5;
  border: 2px dashed #d0d0d0;
  border-radius: 0.75rem;
  color: hsla(0, 0%, 18.82%, 0.4);
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
}

/* --- Highlight Block --- */
.div-highlight {
  position: relative;
  display: flex;
  width: 100%;
  height: 100%;
  margin-bottom: 1rem;
  padding: 2rem 1rem;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  border-radius: 0.75rem;
  background-color: hsla(210, 100%, 96.08%, 1);
  text-align: center;
}

/* --- Footer --- */
.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem;
  margin-top: 4rem;
  border-top: 1px solid #e8e8e8;
}

.footer-text {
  font-family: 'Poppins', sans-serif;
  font-size: 0.875rem;
  color: hsla(0, 0%, 18.82%, 0.4);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.875rem;
  color: hsla(0, 0%, 18.82%, 0.6);
  transition: opacity 0.2s ease;
}

.footer-links a:hover {
  opacity: 0.6;
}

/* --- Back to Top --- */
.button-top {
  position: sticky;
  top: 88%;
  right: 3%;
  z-index: 1;
  display: inline-block;
  width: 50px;
  height: 50px;
  float: right;
  background-color: transparent;
  background-size: cover;
  background-position: 50% 50%;
  cursor: pointer;
}

/* --- Progress Bar --- */
.progress {
  position: sticky;
  left: 0;
  top: 0;
  z-index: 4;
  display: flex;
  width: 100%;
  flex-direction: column;
  align-items: center;
}

.progress-bar {
  position: relative;
  display: flex;
  overflow: hidden;
  width: 100%;
  height: 8px;
  flex-direction: column;
  align-items: flex-start;
  border-radius: 2px;
  background-color: rgba(128, 128, 128, 0.3);
}

.progress-bar-indicator {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 4;
  display: block;
  width: 0%;
  height: 8px;
  border-radius: 2px;
  background-image: linear-gradient(to bottom, #3170e7, #3170e7);
  transition: width 0.1s ease;
}

/* --- NDA Note --- */
.nda-note {
  font-style: italic;
  color: hsla(0, 0%, 18.82%, 0.5);
}

/* ==========================================================================
   Responsive Breakpoints (matching Webflow)
   - medium (tablet): max 991px
   - small (mobile landscape): max 767px
   - tiny (mobile portrait): max 478px
   ========================================================================== */

@media screen and (max-width: 991px) {
  .section {
    margin-top: 5rem;
  }

  .column-title {
    margin-top: 0;
    margin-bottom: 3rem;
    padding-right: 2rem;
    padding-left: 2rem;
  }

  .columns {
    display: block;
    align-items: flex-start;
  }

  .heading-title {
    margin-top: 1rem;
  }

  .progress-bar,
  .progress-bar-indicator {
    height: 6px;
  }

  .section-hero {
    width: 100%;
  }

  .div-thumbnail {
    height: 28rem;
  }

  .nav {
    padding: 1rem 1.5rem;
  }
}

@media screen and (max-width: 767px) {
  .section {
    margin-right: auto;
    margin-left: auto;
    padding-right: 0.625rem;
    padding-left: 0.625rem;
  }

  .column {
    padding-right: 0;
    padding-left: 0;
  }

  .column-title {
    padding-right: 0.625rem;
    padding-left: 0.625rem;
  }

  .heading-1-n {
    font-size: 1.5rem;
    line-height: 2.25rem;
  }

  .spacer-3 {
    height: 3rem;
  }

  .container {
    text-align: center;
  }

  .section-hero {
    width: 100%;
  }

  .image-placeholder {
    min-height: 14rem;
  }

  .nav-links {
    gap: 1rem;
  }
}

@media screen and (max-width: 478px) {
  .heading-title {
    font-size: 2rem;
    line-height: 2.875rem;
    font-weight: 600;
  }

  .heading-4-n {
    font-size: 1rem;
    line-height: 1.5rem;
  }

  .heading-5-n {
    font-size: 0.875rem;
    line-height: 1.5rem;
  }

  .heading-6-n {
    text-align: center;
  }

  .heading-subtitle {
    font-size: 1rem;
    line-height: 1.5rem;
  }

  .heading-2-n {
    font-size: 1.25rem;
    line-height: 2rem;
  }

  .paragraph,
  .list-item {
    font-size: 1rem;
    line-height: 1.625rem;
  }

  .column {
    padding-right: 0;
    padding-left: 0;
    text-align: left;
  }

  .column-title {
    text-align: left;
  }

  .div-thumbnail {
    height: 20rem;
    background-size: cover;
  }

  .progress-bar,
  .progress-bar-indicator {
    height: 4px;
  }

  .div-info {
    flex-wrap: wrap;
  }

  .image-placeholder {
    min-height: 12rem;
  }

  .footer {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* ==========================================================================
   OASIS Case Study — DOE Color System
   Dark Blue: #013466  |  Medium Blue: #6D9AD0  |  Green: #83B345
   Orange: #F0982B     |  Gray: #CBCBCB

   ADA Notes:
   - White text on Dark Blue (#013466): ~14:1 contrast — passes AAA
   - Dark Blue text on Green (#83B345): 4.8:1 — passes AA normal
   - Dark Blue text on Orange (#F0982B): 5.2:1 — passes AA normal
   - Metric numbers #C46D10 on white: 3.8:1 — passes AA large text (3rem bold)
   - CTA button #013466 on #F0982B: 5.2:1 — passes AA normal
   ========================================================================== */

/* --- Section Dividers --- */
.divider-new.oasis-dark {
  background-color: #013466;
}

.divider-new.oasis-green {
  background-color: #83B345;
}

.divider-new.oasis-orange {
  background-color: #F0982B;
}

/* Divider vertical centering */
.divider-new.oasis-dark .content,
.divider-new.oasis-green .content,
.divider-new.oasis-orange .content {
  margin-bottom: 0;
}

.divider-new.oasis-dark .heading-1-n,
.divider-new.oasis-dark .heading-2-n,
.divider-new.oasis-dark .heading-4-n,
.divider-new.oasis-green .heading-1-n,
.divider-new.oasis-green .heading-2-n,
.divider-new.oasis-green .heading-4-n,
.divider-new.oasis-orange .heading-1-n,
.divider-new.oasis-orange .heading-2-n,
.divider-new.oasis-orange .heading-4-n {
  text-align: center;
  margin-bottom: 0;
}

/* ADA: dark text on green/orange dividers */
.divider-new.oasis-green .heading-1-n,
.divider-new.oasis-green .heading-2-n,
.divider-new.oasis-green .heading-4-n,
.divider-new.oasis-orange .heading-1-n,
.divider-new.oasis-orange .heading-2-n,
.divider-new.oasis-orange .heading-4-n {
  color: #013466;
}

/* --- OASIS Hero --- */
.section-oasis-hero {
  display: flex;
  width: 100%;
  margin-top: 0;
  margin-right: auto;
  margin-left: auto;
  padding-top: 4rem;
  padding-bottom: 3rem;
  flex-direction: column;
  align-items: center;
  background-color: #013466;
  color: #fff;
}

.section-oasis-hero .heading-title {
  color: #fff;
}

.section-oasis-hero .heading-6-n {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.section-oasis-hero .heading-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.section-oasis-hero .paragraph {
  color: rgba(255, 255, 255, 0.85);
}

.section-oasis-hero .image-placeholder {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.4);
}

/* --- Card Color Modifiers --- */
.card-green {
  border-top: 4px solid #83B345;
  background-color: #F8FBF4;
}

.card-orange {
  border-top: 4px solid #F0982B;
  background-color: #FDF8F1;
}

.card-blue {
  border-top: 4px solid #6D9AD0;
  background-color: #F3F7FC;
}

/* --- Challenge Cards --- */
.challenge-card {
  border-left: 4px solid #6D9AD0;
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  padding: 1.75rem;
  text-align: left;
  background-color: #F3F7FC;
}

.challenge-card h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.25rem;
  line-height: 1.5rem;
  font-weight: 600;
  color: #303030;
  margin-bottom: 0.75rem;
}

.challenge-card p {
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  line-height: 1.625rem;
  color: hsla(0, 0%, 18.82%, 0.8);
  margin: 0;
}

/* --- Metric Cards --- */
.metric-card {
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  padding: 2rem 1.5rem;
  text-align: center;
}

.metric-number {
  font-family: 'Poppins', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: #C46D10;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.metric-label {
  font-family: 'Poppins', sans-serif;
  font-size: 1.125rem;
  font-weight: 600;
  color: #303030;
  margin-bottom: 0.5rem;
}

.metric-desc {
  font-family: 'Poppins', sans-serif;
  font-size: 0.9375rem;
  line-height: 1.5rem;
  color: hsla(0, 0%, 18.82%, 0.7);
  margin: 0;
}

/* --- Takeaway Cards --- */
.takeaway-card {
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  padding: 1.75rem;
  text-align: left;
}

.takeaway-card h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.25rem;
  line-height: 1.5rem;
  font-weight: 600;
  color: #013466;
  margin-bottom: 0.75rem;
}

.takeaway-card p {
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  line-height: 1.625rem;
  color: hsla(0, 0%, 18.82%, 0.8);
  margin: 0;
}

/* --- Card Grids --- */
.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  width: 100%;
  max-width: 940px;
  margin: 0 auto;
}

.card-grid-2x2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  width: 100%;
  max-width: 940px;
  margin: 0 auto;
}

/* --- CTA Banner --- */
.cta-banner {
  background-color: #013466;
  padding: 4rem 2rem;
  text-align: center;
  width: 100%;
  margin-top: 5rem;
}

.cta-banner h2 {
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
}

.cta-banner p {
  font-family: 'Poppins', sans-serif;
  font-size: 1.125rem;
  line-height: 1.75rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.cta-button {
  display: inline-block;
  background-color: #F0982B;
  color: #013466;
  font-family: 'Poppins', sans-serif;
  font-size: 1.125rem;
  font-weight: 600;
  padding: 0.875rem 2.5rem;
  border-radius: 2rem;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.cta-button:hover {
  background-color: #D9871F;
  transform: translateY(-1px);
}

/* --- Solution Sections --- */
.solution-section + .solution-section {
  margin-top: 3rem;
}

/* --- Progress Bar OASIS override --- */
.progress-bar-indicator.oasis {
  background-image: linear-gradient(to bottom, #013466, #013466);
}

/* --- OASIS Responsive Overrides --- */
@media screen and (max-width: 991px) {
  .card-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-oasis-hero {
    padding-top: 3rem;
    padding-bottom: 2rem;
  }

  .metric-number {
    font-size: 2.5rem;
  }

  .solution-section + .solution-section {
    margin-top: 2rem;
  }
}

@media screen and (max-width: 767px) {
  .hero-screenshot {
    width: 100%;
  }

  .card-grid-3,
  .card-grid-2x2 {
    grid-template-columns: 1fr;
  }

  .cta-banner h2 {
    font-size: 1.5rem;
  }

  .cta-banner p {
    font-size: 1rem;
  }

  .metric-number {
    font-size: 2.25rem;
  }

  .cta-banner {
    margin-top: 3rem;
  }
}

@media screen and (max-width: 478px) {
  .section-oasis-hero {
    padding-top: 2rem;
    padding-bottom: 1.5rem;
  }

  .challenge-card,
  .takeaway-card,
  .metric-card {
    padding: 1.25rem;
  }

  .cta-banner {
    padding: 3rem 1.25rem;
    margin-top: 2rem;
  }

  .cta-button {
    font-size: 1rem;
    padding: 0.75rem 2rem;
  }
}

/* ==========================================================================
   Site-level fixes & additions
   ========================================================================== */

/* --- Hide Webflow badge (injected by webflow JS) --- */
.w-webflow-badge {
  display: none !important;
}

/* --- 1440px max-width for nav and footer content --- */
.navigation-items {
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  box-sizing: border-box;
}

.footer-items {
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  box-sizing: border-box;
}

/* --- YouTube thumbnail fallback (Error 153 fix) --- */
.yt-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 44px;
  background: rgba(255, 0, 0, 0.9);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.youtube-thumb-link:hover .yt-play-btn {
  background: #ff0000;
}

/* --- YouTube embed fix: ensure container height is computed correctly --- */
.philosophy-video {
  display: block;
  width: 100%;
}

/* --- Homepage project card: OASIS --- */
.div-work-image-2.oasis {
  background-image: url("../images/cover_doe.png");
  background-position: 50%;
  background-size: cover;
}

.heading-5-n.oasis {
  color: #3170e7;
}

/* --- Fun page card: DentaPal (replaces animal) --- */
.div-fun-image.dentapal {
  background-image: url("../images/cover_dentapal.png");
  background-position: 50%;
  background-size: cover;
}

.div-fun-image-blur.dentapal {
  background-image: url("../images/cover_dentapal.png");
  background-position: 50%;
  background-size: cover;
}

/* --- Homepage main content max-width --- */
.container-large {
  max-width: 1280px;
}

/* --- Project card spacing: increase horizontal + vertical gaps ---
   Design note: all card spacing is set here centrally for consistency.
   Increase .w-col padding for horizontal gutter; compensate w-row margin. --- */
.columns-large .w-col {
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.columns-large .w-row {
  margin-left: -1.25rem;
  margin-right: -1.25rem;
}

.columns-large .div-work-new {
  margin-top: 2.5rem;
}

/* --- Project card hover effect: single CSS-based animation applied to all cards.
   Replaces Webflow JS interactions (data-w-id) for design consistency. --- */
.div-work-new {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.div-work-new:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

/* --- Project card title tag theme colors --- */
.heading-5-n.salesforce { color: #0271bb; }
.heading-5-n.beamable   { color: #6351ab; }
.heading-5-n.best-buy   { color: #0046be; }

/* --- Wuhan University brand color --- */
.text-span.whu { color: #115740; }

/* --- About: design philosophy evolution (strikethrough old heading + growth note) --- */
.philosophy-old-heading {
  text-decoration: line-through;
  opacity: 0.3;
  margin-bottom: 0.25rem;
}

.philosophy-evolution {
  margin-top: 1.25rem;
  opacity: 0.75;
}

/* --- OASIS case study: hero screenshot --- */
.hero-image-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 1rem 0 1rem 1rem;
}

.hero-screenshot {
  width: 115%;
  max-width: 700px;
  border-radius: 10px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
}

/* --- OASIS case study: context diagram --- */
.context-diagram-wrap {
  margin-top: 2rem;
  border-radius: 12px;
  overflow: hidden;
}

.context-diagram {
  width: 100%;
  height: auto;
  display: block;
}

/* --- OASIS case study: problem collage (blurred legacy screenshots) --- */
.problem-collage {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  align-items: flex-start;
}

.problem-collage-item {
  flex: 1;
  position: relative;
}

.problem-screenshot {
  width: 100%;
  display: block;
  border-radius: 6px;
  filter: blur(3px);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.problem-collage-label {
  margin-top: 0.5rem;
  font-size: 11px;
  color: #888;
  text-align: center;
  font-style: italic;
}

.image-caption {
  font-size: 12px;
  color: #999;
  text-align: center;
  margin-top: 0.75rem;
  font-style: italic;
}

/* --- OASIS case study: recommendation / quote cards --- */
.quote-card {
  background: #fff;
  border: 1px solid #e8e8e8;
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.25rem;
  text-align: left;
}

.quote-text {
  font-size: 14px;
  line-height: 1.7;
  color: #444;
  margin: 0;
  flex: 1;
}

.quote-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid #f0f0f0;
}

.quote-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.quote-name {
  font-size: 13px;
  font-weight: 600;
  color: #222;
}

.quote-role {
  font-size: 11px;
  color: #888;
  margin-top: 2px;
}

.quote-highlight {
  font-weight: 600;
  color: #3170e7;
}

/* --- Nav & footer inner content max-width: matches container-large --- */
.navigation-items {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

.footer-items {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Lightbox --- */
img.lightbox-trigger {
  cursor: zoom-in;
  display: block;
  max-width: 100%;
  margin: 0 auto;
}

.lightbox-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  z-index: 9999;
  cursor: zoom-out;
  justify-content: center;
  align-items: center;
}

.lightbox-overlay.active {
  display: flex;
}

.lightbox-overlay img,
.lightbox-overlay .lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.4);
  animation: lightbox-fade-in 0.2s ease;
}

.lightbox-overlay .lightbox-content {
  width: 85vw;
  padding: 2rem;
  background: #fff;
  border-radius: 8px;
}

.lightbox-overlay .lightbox-content svg {
  width: 100%;
  height: auto;
}

@keyframes lightbox-fade-in {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* --- Footer spacing: consistent across all pages --- */
.footer-wrap {
  margin-top: 5rem;
}